Swing-motion truck for cars.



O. D. YOUNG.

SWING MOTION TRUGK FOR CARS. APPLIOATION FILED AUG. 6, 1909.

944;, 1 65-, Patented Dec. 21, 1909.

4 SHEETS-SHEET 1.

WITNESSES VEN TOR G. D. YOUNG. SWING-MOTION TRUCK FOR CARS.

APPLICATION FILED AUG. 6, 1909.

Patented Dec; 21, 1909.

4 SHEETS-SHEET 2.

IINVENQTOR llarney CID. YOUNGnf SWING MOTION TRUCK FOB (JARS.

APPLICATION IILED AUG. 6, 1909.

Patented Dec2 1,1909:

iSHEE' PS-SHEBT IT ESSLS INVENTOR M74 W 0. D. YOUNG. SWING MOTION TRUCK FOR CARS.

APPLIOATION FILED AUG. 6, 1909.

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A tame [[NESSES m g4 M CHARLES noncaivson YOUNG,- or communes, 01110.

SWING-MOTION TRUCK FOR CABS.

- Specification of Letters Patent.

Application m August e, 1909. sci-m1 No. 511,634.

To all whom it may concern:

Be it known that I, CHARLES-D. Youne, of Columbus, in the county of Franklin and State of Ohio, have in en ed certain new and useful Improvements in Swing-Motion Trucks forCars; and I do hereby declare the following to be a full, clear, and exact description of the invention, such-as will enable others skilled in the art to which it appertains to make and use the same.

y invention relates to an improvement in swing motion trucks or cars, the object being to provide a truck of this characteris made for proper.

in which provision strength and for safety in the event of the breakageof any of the partsfrom which the bolster is suspended.

A further object is to provide a construction, whereby 1n the event ofbreakage of any of the bolster suspending parts, the said parts will become locked within the side frames, thus making the truck safe for continued service.

With these and other objects in view, 'my invention-consists in the parts and combination of parts as will be more fully described and pointed out in the claims.- r

'In the accompanying drawings, Figure 1 is a view-in side elevation of atruck, some of the concealed parts being shown in dotted lines; Fig. 2 is a top or plan-view of one half a truck; Fig. 3 is a view in end elevation of same; Fig. 4 is a section on line A-B of Fig. 1;Fig. 5 is a sectionon the line C--D; Fig. (i is a section on the line G-H, and Fig. 7 is a view in' section on theline EF. Y

l represents the side frameof the truck composedof an upper arch 2, a lower arch 3, parallel vertical columns boxes a, and journal box tie bar 6 all the above-parts except the journal boxes and the tie'bar being cast integral. p Formed in the frame between the' upper and lower arches and the columns 4, is the bolster opening. The bolster issupported at itswnds within the openings" in the two side frames, upon the s rings '11, carried by the spring seats 8, the atter being mounted upon the lower member of the hanger yokes 9, thevertical members of which are-suspended from their upper ends on two pins 10, as clearly shown in Fig. 5. I

The pins 10, two for each upright member of each yoke, pass through elongated .slote located on opposite sides of the center and provided at yoke moves. mg pins for each iand P, ournalof said member as clearly shown lItFlgiEl,

so that normally, the yoke is suspended from all four pins, consequently cannot swing except when the'truck tilts, as in turning a curve, or when forcibly swung by the endwise movement of the bolster.

The upper face of the lower or horizontal member of the yoke, is curved in the arc of a circle, and forms a supportfor the spring seat 8, which latter is enlarged on its under face at its center, which enlargementis-provided with a'concav'e recess conforming in shape zontal member of the 'yoke. This spring seat is a box like structure open at its top its front and upwardly projecting integral members 0,

forming in effect columns which latter are" embraced or overlapped by the guides 12 S87 cured to the bolster, and operate to guide the latter in its vertical n1ovements. As the spring seat is mounted to rock on the yoke, and as the bolster'guides embrace the upwardly rojecting members 0 of the spring seat, it ollows that any endwise movement of the bolster will be transmitted to the spring seat and either rock the latter on the I yoke or cause the yoke to swing.

One important feature of my lnvention is the construction and size to the convex'face of the horig 7 rear with Patented Dec. 21, 1909.

of the lower arch, and from an inspection of Figs. f and 5, it will be seen that the contour of the upper face thereof is formed by striking arcs from the centers of the two pins 11 on'which each upright member of the yoke'is journaled, the two, curved surfaces forming in effect a pocket in which the lower member of the By reason ofthe' t'wo sup aortupright member 0 the yoke, the path of movement of the spring seat 8 and-yoke 9 in swinging, isconcentric with the curved surfaces of the pocket, and owing to the shape of the lower of the yokes, and the proximity of the lo ver member of the latter to the pocket in the lower arch, it is apparent that if one or more pins 10, or the yoke should break,*the latter-would fall into the pocket and thus sustain the parts in' position for safe service.

If onepin should break, or the yoke be ruptured and isengaged from one in the weightmillbe transferred to the ot er pin and thus changing the center of gravity of the yoke, and swinging its lower end sidearch, the y ize wise and into contact with the lower arch.

spring seat onto the arch and thus support the spring seat solidly on the arch.

The cylindrical bearingof the spring seat on the horizontal member of the yoke, as shown at j in Fig. 4, is of ample area to reduce the wear of parts 8 and 9 to a minimum and bring the lowest point of swinging for hanger yoke 9 contiguous to lower arch 3.

' While I have shown a hanger with two pin supports at each side, I do not confine my invention to such construction, as the" form of arches may be made to conform to any method of supporting, such as one pin center hung, or one pin to the right or left of center.

The center pins are of reduced diameters at "their centers as shown in F 1g. 7, hence when the yokes' are swung from the central reduced portion, the pins are securely locked in place.

Each side frame 1 is provided with openings at points as close as possible to the point of loading, to receive the ends of the cross ties-l2, which latter are pivotally secured to the side frames, on opposite sides of the bolster by pins 13 as shown in Fig. 2. By this arrangement I provide for flexibility between the side frames and cross ties without affecting the parallelism of the side frames. 1

Both cross ties 12, are provided with integral brackets d for the attachment of the brake beam hangers, and for the brake beam safety guard or release spring h, and one is provided with the seat e for the attachment ei the live brake lever guide 12*, and the other with a seat f for the attachment of the dead lever support 12.

It is evident that many slight changes might be resorted to in the relative arrangement of parts shown and described without departing from the spirit and scope of my invention hence I would have it understood that I do not wish to confine myself to the exact construction and arrange-- ment of parts shown but,

Having fully described my invention what.

I claim as new and desire to secure terssPatent, is v 1. In a swing motion truck the combination with a truck frame, having a bolster opening, therein,;'the lower wall of the bolster opening having a recess or pocket in its by Let- .upper face, of a. swinging yoke journaled Mei-ea within the bolster opening above said recess or pocket and a bolster carried by said yoke.

2. In a swin motion truck the combination with aside frame having a bolster opening therein, the lower wall of said opening having a recess orpocket therein, of a yoke journaled to the frame, a spring seat mounted on the yoke, springs carried by said seat and a bolster mounted at one end on the springs.

3. In a swing motion truck the combination with a side frame comprising upper and lowerarches and columns, the lower arch being provided on its upper face be,

tween. the columns with a depression (or pocket to receive the yoke in the event of breakage of any of the suspending parts, of

a spring seat'journaled on the yoke, and a bolster carried by said springs.

4. In a swing motion truck the combination with a side frame having a bolster opening and a pocket at the base of said opening, of a yoke, pivoted to the frame and suspended in a plane above the pocket, a

spring seat journaled on the yoke and provided with upstanding members, springs on said seat, and a bolster seated on the springs and provided with guides embracing the upstanding members of the spring seat.

5. In a swing motion truck the combination with a side frame having a bolster opening, of a yoke mounted to swing in said opening, a spring seat carried by said yoke and having upwardly projecting members, springs on said seat and a bolster having guide flanges embracing the upwardly projecting members of the spring seat.

6. In a swing motion car truck the combination with a side frame, a'yoke pivoted thereto and a bolster, of a spring seat mounted on the yoke and, having members rigid with the seat engaged by the bolster.

7. In a swin motion truck the combination with a si e frame composed of upper and lower arches and columns, .the upper.

face of the lower arch being conoa ed, of a yoke each upright member of which is pro vided with two elongated slots, pins passing through said slots and carried bythe columns, each pin su porting said yoke concentric with one si e of the concavity in, the

lower arch and eccentric to the other side, and a bolster supported on said yoke.

8. In a swing motion truck,'the combination with a slde frame having a bolster openin a hanger yoke pivotally connected to sai frame near the upper end of said opening and a bolster carried 'at one end by the yoke, of cross ties secured at their ends within opening's formed the side frame between the columns and journal boxes and approximately in the horizontal plane of the pivotal supports for the hanger yoke.

9. In a swing motion truck, the combina- 5 said openings.

-11. A cross tie for rail road trucks provided with integral supporting lugs respectively for the brake earn hangers, lever ide and release spring. In testimony whereot, I have signed this specification in the presence of two subscribingwitnesses.

tion of a side frame provided with openings immediately adjacent the load carrying points, cross ties and means for flexibly connecting the cross ties at their ends within 10. In a swing motion trilck, the combination of a side frame provided With openings immediately adjacent the load carrying points, cross ties having vertical openings in 10 their ends, and pins flexibly connecting said ties to the side frame.

CHARLES DUNCANSON YOUNG. v Witnesses:

Gno. H. Boo'm,

W. R. POMERENE. 

